Registration Number
0225U000891,
(0121U000049)
, R & D reports
Title
Theoretical substantiation of expediency of introduction of system of tillage "no till"
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Встановити зміни біологічної активності чорнозему у зв'язку зі зміною агрофізичних, агрохімічних та водних властивостей чорнозему під впливом системи No-till порівняно з систематичною оранкою і поверхневим обробітком та показати вплив на продуктивність зернових культур в 5-пільній сівозміні
Head
Demydenko Oleksandr V., Доктор сільськогосподарських наук
Registration Date
21-01-2025
Organization
Cherkasy State The Agricultural Experimental Station of National Scientific Center "Institute of Agriculture of National Academy of Agrarian Sciences of Ukraine"
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During the period of grain ripening and soybean formation, the concentration of CO2 exceeded 600 ppm regardless of the method of soil cultivation and was within 630–642 ppm. Later, during the period of grain harvesting, CO2 emissions decreased in all soil cultivation options, but the concentration of CO2 in the surface air exceeded 600 ppm and was higher during no-till shallow cultivation. On average, for the period from 04/15/2024 to 08/14/2024, the concentration of CO2 during plowing was 728 ppm, during no-till shallow cultivation it was 37 ppm higher, and during the No-till system it was 10–25 ppm higher. The threshold concentration of CO2 at a height of 0.45 m is considered to be 415–425 ppm. Regardless of the method of soil cultivation, the excess of CO2 concentration was 303–328 ppm. Under no-till cultivation and the No-till system, the increase in CO2 concentration relative to threshold values was more significant (+328–340 ppm) compared to plowing (+303 ppm).
The systematic use of shallow no-till cultivation contributes to the formation of easily hydrolyzed forms of nitrogen and a decrease in the level of nitrification, and under the No-till system, the specified process of formation of ammonia and nitrate forms of nitrogen is significantly enhanced, which is associated with the growth of biologization processes due to the growth of biological activity, which should stimulate humification processes.
Product Description
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Demydenko Oleksandr V.
Kolomiiets Yuliia M.
Muzychko Svitlana B.
Rasevych Volodymyr V.
Tetereshchenko Nataliia M.
Shahurska Nataliia V.
Shapran Valentyna S.
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2025-01-21
